diff --git a/modules/improvedigitalBidAdapter.md b/modules/improvedigitalBidAdapter.md
index 7206dd8ba7b..1d691542256 100644
--- a/modules/improvedigitalBidAdapter.md
+++ b/modules/improvedigitalBidAdapter.md
@@ -1,53 +1,110 @@
 # Overview
 
-**Module Name**: Improve Digital Bidder Adapter
-**Module Type**: Bidder Adapter
-**Maintainer**: hb@azerion.com
+```text
+Module Name: Improve Digital Bidder Adapter
+Module Type: Bidder Adapter
+Maintainer: hb@azerion.com
+```
 
 # Description
 
-Module that connects to Improve Digital's demand sources
+This module connects publishers to Improve Digital's demand sources through Prebid.js.
 
 # Test Parameters
+
+```javascript
+var adUnits = [{
+    code: 'div-gpt-ad-1499748733608-0',
+    sizes: [[600, 290]],
+    bids: [
+        {
+            bidder: 'improvedigital',
+            params: {
+                publisherId: 123,
+                placementId:1053688
+            }
+        }
+    ]
+}, {
+    code: 'div-gpt-ad-1499748833901-0',
+    sizes: [[250, 250]],
+    bids: [{
+        bidder: 'improvedigital',
+        params: {
+            publisherId: 123,
+            placementId:1053689,
+            keyValues: {
+                testKey: ["testValue"]
+            }
+        }
+    }]
+}, {
+    code: 'div-gpt-ad-1499748913322-0',
+    sizes: [[300, 300]],
+    bids: [{
+        bidder: 'improvedigital',
+        params: {
+            publisherId: 123,
+            placementId:1053687,
+            size: {
+                w:300,
+                h:300
+            }
+        }
+    }]
+}];
+```
+
+# Additional Information 
+
+## Bid params
+
+| Name | Scope | Description | Example | Type |
+| --- | --- | --- | --- | --- |
+| `placementId` | required | The placement ID from Improve Digital. | `1234567` | `integer` |
+| `publisherId` | required | The publisher ID from Improve Digital. | `4567` | `integer` |
+| `keyValues` | optional | Contains one or more key-value pairings for key-value targeting | `{ testKey1: ['testValueA'], testKey2: ['testValueB', 'testValueC'] }` | `object` |
+| `bidFloor` | optional | Bid floor price | `0.01` | `float` |
+| `bidFloorCur` | optional | Bid floor price currency. Supported values: USD (default), EUR, GBP, AUD, DKK, SEK, CZK, CHF, NOK | `'USD'` | `string` |
+| `extend` | optional | See the [Extend mode section](#extend-mode) | `true` | `boolean` |
+
+## Configuration
+
+### Sizes
+
+By default, the adapter sends Prebid ad unit sizes to Improve Digital’s ad server. If the ad server should only respond with creative sizes as defined for each placement in the Origin platform, turn off `usePrebidSizes` adapter parameter like this:
+
+```javascript
+pbjs.setConfig({
+    improvedigital: { usePrebidSizes: false }
+});
 ```
-            var adUnits = [{
-                code: 'div-gpt-ad-1499748733608-0',
-                sizes: [[600, 290]],
-                bids: [
-                    {
-                        bidder: 'improvedigital',
-                        params: {
-                            publisherId: 123,
-                            placementId:1053688
-                        }
-                    }
-                ]
-            }, {
-                code: 'div-gpt-ad-1499748833901-0',
-                sizes: [[250, 250]],
-                bids: [{
-                    bidder: 'improvedigital',
-                    params: {
-                        publisherId: 123,
-                        placementId:1053689,
-                        keyValues: {
-                            testKey: ["testValue"]
-                        }
-                    }
-                }]
-            }, {
-                code: 'div-gpt-ad-1499748913322-0',
-                sizes: [[300, 300]],
-                bids: [{
-                    bidder: 'improvedigital',
-                    params: {
-                        publisherId: 123,
-                        placementId:1053687,
-                        size: {
-                            w:300,
-                            h:300
-                        }
-                    }
-                }]
-            }];
+
+### Extend Mode
+
+Improve Digital Extend mode provides publishers with access to additional demand from other SSPs. Before enabling please contact our team for more information.
+The Extend mode can be enabled:
+
+* per ad unit via the `extend` [bid param](#bid-params)
+* for all ad units via `setConfig()`:
+
+```javascript
+pbjs.setConfig({
+    improvedigital: {
+        extend: true
+    }
+});
+```
+
+### MultiBid
+
+Improve Digital supports Prebid's MultiBid feature. More on enabling MultiBid can be found here: [MultiBid](./multibid/index.md). An example of how to enable MultiBid for Improve Digital:
+
+```javascript
+pbjs.setConfig({
+    multibid: [{
+        bidder: "improvedigital",
+        maxBids: 3,
+    }]
+});
 ```